1295749043 has 2 divisors, whose sum is σ = 1295749044. Its totient is φ = 1295749042.

The previous prime is 1295749019. The next prime is 1295749079. The reversal of 1295749043 is 3409475921.

It is a weak prime.

It is an emirp because it is prime and its reverse (3409475921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1295749043 - 2⁸ = 1295748787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1295748985 and 1295749003.

It is not a weakly prime, because it can be changed into another prime (1295749003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647874521 + 647874522.

It is an arithmetic number, because the mean of its divisors is an integer number (647874522).

Almost surely, 2^1295749043 is an apocalyptic number.

1295749043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295749043 is an equidigital number, since it uses as much as digits as its factorization.

1295749043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 1295749043 is about 35996.5143173613. The cubic root of 1295749043 is about 1090.2019778335.

The spelling of 1295749043 in words is "one billion, two hundred ninety-five million, seven hundred forty-nine thousand, forty-three".